Probably the most famous sign for Autobahn fans is the "End of restrictions" sign: https://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Zeichen_282.svg/20

Probably the most famous sign for Autobahn fans is the "End of restrictions" sign: https://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Zeichen_282.svg/2000px-Zeichen_282.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Ze... It's abstract in the extreme. You have to know what it means via a prior learning process, as there's no relationship with an everyday activity. For my US driver's license I had to learn maybe 50 signs, and they were easy to categorize based on shape and color (white rectangles are a restriction such as speed limits). For my European driver's test (for USAFE) it was over 200 different signs, and each had to be learned individually as they seldom had commonalities. The "Autobahn begins" sign is fairly intuitive, though: https://upload.wikimedia.org/wikipedia/commons/thumb/2/27/Road_sign_autobahn_330.svg/612px-Road_sign_autobahn_330.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/2/27/Ro...